Clock



FIG. 1 is a front elevational view of a clock showing our new design;

FIG. 2 is a right side elevational view thereof, the left side being a mirror image thereto;

FIG. 3 is a top plan view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left front perspective view of another embodiment of our new design of FIGS. 1-4 wherein the pedestal has been eliminated whereby the clock sits directly on the base. 

The ornamental design for a clock, as shown and described. 